JP2000074299A - Cap for valve device with fire extinguisher vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate mounting/demounting by eliminating necessity for removing work and ensure safety, by providing an opening corresponding to a pipe mounting part, an operating device, and a pressure gas mounting part in a cap opening an upper part. SOLUTION: A cap 1 is formed so as to cover a valve device 2 to be capable of being mounted on and demounted from a fire extinguisher vessel 3 charged with a fire extinguisher, a cylinder surface thereof is provided with an outlet opening 11, mounting opening 12, and an installation opening 13, and an upper part of the cap 1 is opened. The valve device 2 comprises an outlet part 21 on which a pipe 5 supplying the fire extinguisher is mounted, a mounting part 22 on which an operating device 6 making a release capable of the fire extinguisher is mounted when a fire occurs, an installation part 23 installing a pressure gage 4, inlet part 24 for inputting the fire extinguisher, etc. In this constitution, because the pipe 5, operating device 6, and the pressure gage 4 can be mounted on and demounted from the valve device 2 by utilizing the respective opening in a condition mounting the cap 1 on the fire extinguisher vessel 3, necessity for mounting/demounting work of the cap 1 is eliminated, also safety at transport time or the like is ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outlet portion to which a pipe for supplying a fire extinguishing agent is mounted, a mounting portion to which an actuating device for discharging a fire extinguishing agent in the event of a fire is mounted, and a mounting portion to which a pressure gauge is mounted. The present invention relates to a cap for a valve device with a fire extinguisher container which is detachably formed on a fire extinguisher container so as to cover a valve device attached to the fire extinguisher container, particularly when connecting pipes or filling a fire extinguisher. Regarding improvement technology.

[0002]

2. Description of the Related Art Conventionally, a cap of a valve device with a fire extinguishing agent container has conventionally been configured such that an outer surface of the valve device except for a portion attached to the container largely covers the valve device completely (for example, Japanese Patent Application Laid-Open No. 6-94).
No. 196, see FIG. 3). When the fire extinguisher container and the valve device are manufactured and assembled at the manufacturing plant, a cap is attached to the valve device for the purpose of preventing damage to the valve device and for safety, and installing the fire extinguisher container at the fire extinguishing target and installing piping. The cap had to be removed when installing and operating.

[0003] However, with such a cap having a completely closed valve device and a handling method for attaching and detaching the cap, attaching and detaching and storing the cap are extremely complicated and require labor. That is, regarding the cap, installation at the time of factory shipment,
Removal and reattachment when filling with fire extinguishing agent at a specified location specified by law, removal and storage at the container installation location, reattachment for transport when refilling fire extinguishing agent, removability and reattachment for filling, installation again A great deal of work was required, such as re-removal and re-storage at the site. Further, such a cap needs to be stored for as long as 20 years, which is the service life of the fire extinguishing agent container and the valve device, and it has been difficult to reliably manage the cap. As a result, the cap is lost when refilling the fire extinguishing agent,
There is a possibility that the container may be transported in a state where it is not mounted, and there is a possibility that the safety of a fire extinguishing agent composed of a high-pressure gas such as nitrogen may be lacking.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and eliminates the need for a removal operation, eliminates the need for labor for attaching and detaching, and always ensures safety. It is an object to provide a cap for a device.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to a valve device attached to a fire extinguishing agent container, wherein an outlet portion to which a pipe for supplying a fire extinguishing agent is attached is provided. A fire extinguisher removably formed on the fire extinguisher container so as to cover a valve device provided with a mounting part to which an actuating device that enables release of the fire extinguishing agent when a fire occurs and a mounting part to which a pressure gauge is mounted. In a cap of a valve device with a container, an outlet opening and a mounting are provided at positions facing the outlet, the mounting portion, and the mounting portion, respectively, so that the pipe, the operating device, and the pressure gauge are detachable. An opening and a mounting opening are provided, and the side opposite to the side attached to the fire extinguisher container is opened.

The invention according to claim 2 is characterized in that, in addition to the above, the material is a metal pipe.

A third aspect of the present invention is characterized in that, in addition to the features of the first aspect, the outlet opening is provided so that the pipe can be attached to and detached from the outlet by a special tool.

[0008]

1 to 3 show examples of the structure of a cap of a valve device with a fire extinguishing agent container to which the present invention is applied. FIG.
In FIGS. 1 (a) and 1 (b), in order to clarify the shape of the valve device, a portion that is originally a broken line inside the cap is indicated by a solid line, and unlike FIG. No state is shown.

The cap 1 is detachably formed on a fire extinguishing agent container 3 filled with, for example, nitrogen as a fire extinguishing agent so as to cover the valve device 2, and has an outlet opening 11, a mounting opening 12, and a mounting opening on its cylindrical surface. 13 is provided. Fire extinguisher container 3
The upper side, which is the side opposite to the side to be attached to, is open. In this example, the cap 1 is manufactured by processing a carbon steel pipe for general structure as a metal pipe. That is, the openings 11, 12, and 13 are formed by an automatic fusing device, and the upper end portion 14 is formed as a ring-shaped flange-shaped reinforcing portion by a special bending process. Incidentally, it is also possible to use a cast iron or the like. In addition, it is naturally possible to use a material other than a steel pipe having appropriate strength.

Attachment 15 of cap 1 to fire extinguishing agent container 3
Are usually screws as shown in FIGS. However, as shown in FIG. 3, utilizing the fact that the opening is opened,
For example, the lower part is cut at the position of the mounting opening 13 to adjust the adjustment groove 16.
Is formed, and the mounting portion 1 is
5 may be fastened and fixed to the container.

The valve device 2 is provided with an outlet 21 to which a pipe 5 for supplying a fire extinguishing agent is attached, an attaching portion 22 to which an actuating device 6 for discharging a fire extinguishing agent in the event of a fire is attached, and a pressure gauge 4. The fire extinguisher container 3 is provided with a mounting portion 23, an entrance portion 24 attached to the fire extinguishing agent container 3, and the like. The openings 11, 12, and 13 of the cap are provided at positions facing the outlet 21, the attachment 22, and the attachment 23 so that the pipe 5, the actuator 6, and the pressure gauge 4 can be attached and detached, respectively. Reference numeral 25 is a safety plug. When the fire extinguishing agent gushes from the safety plug, the fire extinguishing agent is released from the open top. 4 to 6 show examples of the structure of the valve device. The cap of the present invention can be applied to any valve device such as a normal structure or a special structure or a special size. It is of the type that can be automatically adjusted to the required pressure.

The valve device 1 includes a main body 26, a middle body 27 screwed inside the main body 26, a valve body member 28, a valve body 29, a valve seat 30,
It has a lateral conduction hole 31, a communication conduction hole 32, an upper conduction hole 33, a spring receiver 34, a moving spring receiver 35, a spring seat 36, a spring 37, a sealing plate mechanism 38, and the like. In the figure, a state in which the moving spring receiver 35 is in the upper position and the valve body member 28 is raised to close the valve body 29 is shown on the right side of the center line C, and the spring receiver 35 is in the lower position and The state where 29 is open is shown on the left side. The outlet part 21, the mounting part 22, the mounting part 23, and the inlet part 24 shown in FIG. 1 and the like are formed as a part of the main body 26. In addition, the needle valve 3 is located next to the mounting portion 23 of the pressure gauge.
9 is provided so that the gas flow to the pressure gauge can be adjusted. The needle valve 39 is adjustable from the mounting opening 13 as shown in FIG. Reference numeral 40 denotes an O-ring.

In the valve device of this embodiment, when the sealing plate 38a of the sealing plate mechanism is broken in order to discharge the fire extinguishing agent in the event of a fire or the like, the extinguishing agent gas that has entered the inlet passage 24a from the extinguishing agent container is sequentially discharged. The pressure flows from the container side to the open pressure receiving surface 28a at the upper end of the valve body member 28 and the pressure receiving surface 35a of the movable spring receiver 35 via the horizontal conduction hole 31, the communication conduction hole 32, and the upper conduction port 33. Works. Thereby, on the pressure receiving surface 35a side, the moving spring receiver 35 is pushed down by the pressure of this portion, and when the spring 37 is lowered to the predetermined position L while compressing the spring 37, it comes into contact with the positioning portion 27a of the middle body 27 and stops. At this time, the spring 37 compressed by the moving spring receiver 35 exerts a spring force on the valve body 29 in the opening direction. As a result, the valve body 29 is pushed down, the inlet passage 24a and the outlet 21a are conducted, and the fire extinguishing agent flows into the fire extinguishing line, and the force of the spring force and the pressure of the fire extinguishing line on the outlet 21a side cause the valve body member 28 and The pressure on the outlet side is adjusted to a constant pressure of, for example, 110 kgf / cm ² by the balance with the force applied to the valve body 29.

FIG. 7 shows an example of the structure of the actuator. The operating device 6 includes, for example, an outer cylinder 61 provided with a working gas inlet 61a supplied from a carbon dioxide gas cylinder (not shown) or the like, an inner cylinder 62 inserted therein, and an inner cylinder 6 having a hole formed in a central portion.
The cover 63 is screwed into the inner cylinder 62 so as to close the upper end of the cover 2, and is slidably inserted into the inner cylinder 62, and the tip of the cover 63 regulates the upper position in the counter-acting direction. An operating ring 64, a point 65a provided to face the needle member 65 attached thereto and the sealing plate 38a,
Spring 66 for urging operating ring 64 upward, cover 63
, A ring 67 with a ring inserted into the hole, a cap 68 for the operation thereof, a sandwich plate 69 interposed between the cover 67 and the cover 63 for holding the position of the rod 67, a pin 69a for sealing the It is composed of a stationary chain 69b, a screw 70 for attaching the chain 69b, and the like. An O-ring for sealing is provided at a required position. Inner cylinder 62
As shown in FIG. 1 (a), a tip portion is formed in a hexagonal nut shape, and a screw 62 a is cut in the inside thereof, and this is screwed into the screw portion 22 a of the mounting portion 22.

The cap of the valve device as described above is used as follows. When the valve device 2 is manufactured at the factory, a blind plug 41 and a protective cap 42 are attached to the outlet portion 21 and the mounting portion 22, respectively, as shown in FIG.
3 is provided with a plug 43 as shown in FIG. 6 to protect each part. In this state, the valve device 2 is
, A cap 1 is mounted, and the container 3 with these mounted is mounted on a transportation means such as a truck and shipped. During transportation, appropriate securing measures are taken to prevent the container 3 from colliding with other objects or falling over. However, during transportation, loading, etc., if a solid material hits the upper part of the container 3 or the container 3 falls over. Even so, the valve device 2 is protected by the cap 1 and is not damaged.

In this case, in the cap of the present invention, the opening 11
Although the strength of the valve device is reduced by the amount corresponding to No. 13 to 13, the valve device can be surely protected even when it falls down by appropriately selecting the material and thickness of the cap. According to the results of a fall test performed by the inventors using an actual container and a cap, when the container falls, the cap may collide with the container mounting surface and receive a considerable external force. It was confirmed that the purpose of protecting the valve device was sufficiently achieved without transmitting to the valve device or damaging the cap itself. When such an opening is provided, the strength is reduced by the notch effect when a repeated stress is applied. No problems occur.

Further, if a steel pipe is used as the material of the cap as in this embodiment, the processing is easy. Therefore, the cap is manufactured in an optimum size and shape for valve devices having various shapes and sizes. be able to. Therefore, unlike a conventional casting cap which requires a mold, it is not necessary to keep a large size for uniformly applying to various valve devices. That is, as long as the pipe 5 and the like can be attached to and detached from the valve device 2, the cap can be manufactured as a small enough and necessary size according to the valve device to be used.
As a result, the manufacturing cost of the cap can be reduced.

Further, if the size of the cap can be reduced, FIG.
As shown in FIG. 2, the diameter of the cap 1 can be made substantially the same as the diameter of the mounting portion 15 thereof. Therefore, while the conventional cap has a bottle neck shape in which the neck portion is reduced with respect to the thick body portion, the cap of the present example has a so-called body shape. As a result, in the cap of this example, the stress state near the mounting portion when receiving an external force is improved.

The container to be transported is filled with extinguishing agent nitrogen at a predetermined extinguishing agent charging station. At this time, since the cap 1 is provided with the outlet opening 11, the container 3 can be filled with the fire extinguishing agent via the outlet 21 using the equipment of the filling station without removing the cap 1 from the container 3. .
Therefore, the operation of removing and reattaching the cap as in the case of the conventional cap is not required, and the labor for the removal is reduced. Further, since the cap is kept attached to the container without removing the cap, safety during the next transportation is secured.

When the container 3 filled with the fire extinguishing agent is to be installed at the end use place, the pipe 5 of the fire extinguishing line is connected to the outlet 21 of the valve device 2, and the operating device 6 and the pressure gauge 4 are connected to the mounting portion 22 and the mounting portion, respectively. 23. Conventionally, the cap was removed at the time of such an operation, but with the cap 1 of the present invention, operations such as pipe connection can be performed with the cap attached. Therefore, labor saving is also achieved at this time.

The pipe 5 can be attached by using an ordinary appropriate tool in accordance with the size of the outlet opening 11 and the position relative to the attachment portion 21, that is, the diameter of the cylindrical portion of the cap 1, and the like. In this example, as shown in FIG. 8, the pipe 5 is attached to and detached from the outlet 21 using a special spanner 50 as a special tool and a normal monkey spanner (not shown). The outlet opening 11 is opened at a position where such an operation can be performed. That is, when the nipple 5a attached to the pipe 5 is attached to the outlet 21, the nipple position is
I try to get inside.

Due to such a positional relationship, the pipe 5 is attached by rotating the nipple 5a and the nut portion 5b of the flexible tube with a hand and a normal spanner to attach the tip 5c of the pipe to the mounting portion 2.
When the nipple 5a enters the cap 1 and compresses the packing (not shown) interposed between the nipple 5a and the end face of the mounting portion 21, the special spanner 50 is used. Is turned to rotate the nipple 5a and tighten the pipe screws while compressing the packing. Finally, the nut portion 5b is sufficiently tightened with a normal monkey wrench to complete the connection of the pipe 5.
When the pipe 5 is removed, the operation is completely opposite to the above. That is, the dedicated spanner 50 is also used at this time.

In this embodiment, the dedicated spanner 50 is operated from above inside the cap, but may be used from the outside of the cap. Although the figure shows an example of a wrench having a special shape, it is also possible to use a wrench having a known appropriate mechanism such as a ratchet type or a torque wrench type. When filling the fire extinguishing agent or installing the pipe 5, the blind plug 41 attached during transportation is of course removed. At this time, since the sealing plate 38a is not broken, even if the blind plug is removed, the fire extinguishing agent does not squirt because the valve is closed as shown on the right side of the center line C in FIGS. .

As shown in FIG. 8B, in this embodiment, a dedicated spanner 51 is also used for attaching and detaching the operating device 6. That is, when the operating device 6 is mounted on the mounting portion 22, the hexagon nut-shaped inner cylinder 62 is located at a position over the mounting opening 12 of the cap 1. Used. It is needless to say that the protective cap 42 is also removed when the operating device 6 is mounted.
The mounting of the pressure gauge 4 on the mounting portion 23 is performed by using a plug 4 shown in FIG.
Remove 3 and hold the instrument to rotate it. In this example, the needle valve 39 disposed in the vicinity is also adjustable from outside the cap through the mounting opening 13.

With the above operation, the fire extinguishing agent container 3 can be used with the cap 1 attached. The fire extinguisher container 3 is usually kept in this state for many years. According to the present invention, since the cap 1 is attached even during this time, it is not necessary to store the cap 1 and there is no danger of losing the cap. The dedicated wrench can be easily stored as a tool, and can be easily manufactured even if it is lost. If the pipes cannot be removed without using a special spanner in this way, there is no danger that the fire extinguishing agent is ejected due to an erroneous operation.

In a fire or the like, the fire extinguishing agent can be discharged while the pressure in the fire extinguishing line is kept constant by breaking the sealing plate 38a with the operating device 6 as described above. Due to this release, it is necessary to refill the fire extinguishing agent. At this time, since the container 3 is covered with a cap, the container is transported to the fire extinguisher filling station without any work while ensuring safety. can do. In any case, such as when extinguishing a fire extinguisher, when re-transporting and re-installing, it is not necessary to attach or detach the cap, and always keep the cap attached to ensure the safety of the device. Can be.

[0027]

As described above, according to the present invention, in the first aspect of the present invention, the cap connects the pipe so that the pipe, the operating device, and the pressure gauge can be detachably attached to the valve device. Since an outlet opening, a mounting opening, and a mounting opening are provided at positions opposite to an outlet portion for mounting the actuator, a mounting portion for mounting the actuator, and a mounting portion for mounting the pressure gauge, the fire extinguishing agent With the cap attached to the container, the piping, the operating device, and the pressure gauge can be attached to and detached from each part of the valve device using the respective openings. As a result, it is not necessary to attach or remove the cap in any state, such as when transporting the container, filling the fire extinguishing agent, installing the container, or re-executing these operations accompanying the release of the fire extinguishing agent, resulting in significant labor savings. Can be In addition, it is not necessary to store the cap for many years, so that it is not necessary to manage the cap, and there is no possibility of losing the cap, so that safety during transportation for refilling the fire extinguishing agent can be ensured.

According to the second aspect of the present invention, since the material of the cap is a metal pipe, the processing is easy, so that the outer diameter and the opening suitable for valve devices having various shapes and sizes are appropriate. You can choose the size. As a result, compared to conventional cast caps that are uniformly formed in a large size due to the need for a mold, miniaturization, ease of manufacture, and cost reduction of the material itself are achieved, and product cost is reduced. Can be Further, the outer diameter of the cap is close to the size of the portion to be attached to the fire extinguishing agent container, and a shape advantageous in strength can be obtained.

According to the third aspect of the present invention, since the outlet opening is provided so that the piping is attached to and detached from the outlet of the valve device by using a special tool, an erroneous operation such as inadvertently loosening the pipe connection using a general-purpose tool is provided. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of the structure of a cap to which the present invention is applied and a valve device portion to which the cap is attached, and FIG. () Is an elevational view showing the valve device in the cap by a solid line and viewed from the pressure gauge direction.

2 (a) and 2 (b) are elevation views of a valve device in a cap shown by a solid line and viewed from a pipe and an actuator unit, respectively.

FIG. 3A is a plan view of a cap in which openings of a piping portion and an actuator portion are developed in a planar state, and FIG. 3B is an elevation view including an opening of a pressure gauge portion.

FIG. 4 is a cross-sectional view showing an example of the internal structure of the valve device and including an operating device portion.

FIG. 5 is a cross-sectional view including an outlet portion of the valve device.

FIG. 6 is an explanatory diagram showing a cross-sectional state of a connection portion of the valve device.

FIG. 7 is a cross-sectional view of an actuator portion of the valve device.

FIGS. 8A and 8B are explanatory diagrams showing a state where a special spanner is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 2 Valve device 3 Fire extinguisher container 4 Pressure gauge 5 Piping 6 Actuator 11 Outlet opening 12 Mounting opening 13 Mounting opening 14 Upper end (opposite side) 21 Outlet 22 Mounting portion 23 Mounting portion 50, 51 Special spanner (special) tool)

Claims (3)

[Claims] 1. A valve device attached to a fire extinguishing agent container, comprising: an outlet portion to which a pipe for supplying a fire extinguishing agent is installed; A cap for a valve device with a fire extinguisher container that is detachably formed on the fire extinguisher container so as to cover a valve device having a mounting portion to be mounted, wherein the pipe, the operating device, and the pressure gauge are detachable. As described above, the fuel cell system includes an outlet opening, a mounting opening, and a mounting opening provided at positions facing the outlet portion, the mounting portion, and the mounting portion, respectively, and the side opposite to the side mounted on the fire extinguishing agent container is open. A cap for a valve device with a fire extinguishing agent container, characterized in that: 2. The cap for a valve device with a fire extinguisher container according to claim 1, wherein the material is a metal pipe. 3. The cap for a valve device with a fire extinguisher container according to claim 1, wherein the outlet opening is provided so that the pipe can be attached to and detached from the outlet portion by a special tool.